ci(release): attach source archives to release and use them for AUR package

Gitea's /archive/ endpoint is disabled, which broke the AUR source download.
Build source tar.gz/zip with git archive, upload as release assets, and point
the PKGBUILD and checksum step at the release asset.

.gitea/workflows/release.yml

@@ -85,6 +85,13 @@ jobs:
           VERSION="${{ github.event.inputs.tag || github.ref_name }}"
           makensis -DVERSION="${VERSION#v}" -DEXE="$PWD/relspec-windows-amd64.exe" -DOUT="$PWD/relspec-setup-windows-amd64.exe" windows/installer.nsi
 
+      - name: Build source archives
+        run: |
+          TAG="${{ github.event.inputs.tag || github.ref_name }}"
+          PREFIX="relspec-${TAG#v}"
+          git archive --format=tar.gz --prefix="${PREFIX}/" -o "relspec-${TAG}-source.tar.gz" "$TAG"
+          git archive --format=zip    --prefix="${PREFIX}/" -o "relspec-${TAG}-source.zip"    "$TAG"
+
       - name: Create release and upload assets
         run: |
           TAG="${{ github.event.inputs.tag || github.ref_name }}"
@@ -198,7 +205,7 @@ jobs:
           echo "Publishing AUR package version ${PKGVER}-${PKGREL}"
 
           # Compute SHA256 of the source archive from the same URL the PKGBUILD will download.
-          SHA=$(curl -fsSL "https://git.warky.dev/wdevs/relspecgo/archive/v${PKGVER}.zip" | sha256sum | cut -d' ' -f1)
+          SHA=$(curl -fsSL "https://git.warky.dev/wdevs/relspecgo/releases/download/v${PKGVER}/relspec-v${PKGVER}-source.zip" | sha256sum | cut -d' ' -f1)
 
           # Update PKGBUILD — keep remote source URL, bump version/checksum, and increment pkgrel for same-version rebuilds.
           sed -e "s/^pkgver=.*/pkgver=${PKGVER}/" \

linux/arch/PKGBUILD

@@ -7,11 +7,11 @@ arch=('x86_64' 'aarch64')
 url="https://git.warky.dev/wdevs/relspecgo"
 license=('MIT')
 makedepends=('go')
-source=("$pkgname-$pkgver.zip::$url/archive/v$pkgver.zip")
+source=("$pkgname-$pkgver.zip::$url/releases/download/v$pkgver/relspec-v$pkgver-source.zip")
 sha256sums=('SKIP')
 
 build() {
-    cd "relspecgo"
+    cd "$pkgname-$pkgver"
     export CGO_ENABLED=0
     go build \
         -trimpath \
@@ -20,12 +20,12 @@ build() {
 }
 
 check() {
-    cd "relspecgo"
+    cd "$pkgname-$pkgver"
     go test ./...
 }
 
 package() {
-    cd "relspecgo"
+    cd "$pkgname-$pkgver"
 
     # Binary
     install -Dm755 "$pkgname" "$pkgdir/usr/bin/$pkgname"